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Scattering of a beam of light by particles of the medium |
| Answer» TYNDALL effect, also called Tyndall phenomenon, scattering of a beam of LIGHT by a medium containing small SUSPENDED particles—e.g., smoke or dust in a room, which makes VISIBLE a light beam entering a window. ... The effect is named for the 19th-century British PHYSICIST John Tyndall, who first studied it extensively. | |